condition mean min max 4 h after light 4.900435 4.49597 5.3049 8 h after light 4.1353349999999995 3.89555 4.37512 12 h after light 1.8611900000000001 1.68298 2.0394 4 h after dark 5.4063566666666665 5.14056 5.63882 8 h after dark 5.5568333333333335 4.75705 6.57757 12 h after dark 5.979533333333333 5.06968 6.52489